extern void dns_build_reverse(uschar *, uschar *);
extern void dns_init(BOOL, BOOL);
extern int dns_basic_lookup(dns_answer *, uschar *, int);
+extern BOOL dns_is_secure(dns_answer *);
extern int dns_lookup(dns_answer *, uschar *, int, uschar **);
extern int dns_special_lookup(dns_answer *, uschar *, int, uschar **);
extern dns_record *dns_next_rr(dns_answer *, dns_scan *, int);
extern uschar *dns_text_type(int);
+extern void dscp_list_to_stream(FILE *);
+extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
extern void enq_end(uschar *);
extern BOOL enq_start(uschar *);
extern void sigalrm_handler(int);
extern BOOL smtp_buffered(void);
extern void smtp_closedown(uschar *);
-extern int smtp_connect(host_item *, int, int, uschar *, int, BOOL);
+extern int smtp_connect(host_item *, int, int, uschar *, int, BOOL, const uschar *);
extern int smtp_feof(void);
extern int smtp_ferror(void);
extern uschar *smtp_get_connection_info(void);